Years ago, I stumbled upon a great deal on a navy blue velvet and brocade bolero style jacket. It is a statement piece and looks just as lovely with jeans as it does a circle skirt.
From a color psychology perspective, blue is reliable and responsible. This color exhibits an inner security and confidence. It is considered a corporate color - think the power suit. I believe this jacket is playful and gives a sense of whimsy to classic navy blue.